CN108954949A - Evaporator for central air-conditioner - Google Patents

Abstract

Evaporator for central air-conditioner, including shell, copper pipe, drive end bearing bracket, rear end cap and spoiler；Gas vent is threaded with casing, which installs exhaust valve again；The inner wall and outside wall surface of copper pipe are screwed surface；The middle of the inside of drive end bearing bracket is provided with lagging；Rear end cap is welded in the rear end of shell, and rear end cap is welded by cylindrical shell and spherical calotte；Spoiler is the discount vibram outlet more than semicircle, and arrangement is that part is arranged along interior of shell proportional spacing；Shell of the present invention occupies all spaces of entire evaporator, therefore the intake-outlet for presetting water and medium on the shell can save big quantity space, optimize the design of host；Water inlet, water outlet, gas vent and drainage hole are all made of threaded connection, easy for installation, and are easy Maintenance and Repair；Failure rate is lower for flanged joint.

Description

Evaporator for central air-conditioner

Technical field

The present invention relates to technical field of central air more particularly to evaporator for central air-conditioner.

Background technique

Central air-conditioning provides cold water using the form of centralized cooling supply for whole building, is then changed again by fan coil etc. Cooling capacity is sent to each room by hot component step by step.Although building structure has generally reserved certain space to central air conditioning Group, but the form of the evaporator of the water cooler of central air-conditioning is varied, including the knot such as shell-and-tube heat exchanger, plate heat exchanger Structure requires to occupy very large space.When especially refrigeration requirement is especially huge, multiple water coolers is needed to work at the same time When being just able to satisfy cooling capacity requirement, need to arrange enough evaporators in the same space as far as possible.

Dry evaporator refers in the coolant channel of evaporator, and refrigerant is in exit evaporating completely, no There are liquid refrigerant, such evaporator is exclusively used in air-cooled water cooler, is not suitable for cooling tower, therefore in condenser end segment Space is saved.But evaporator end also needs to save space, and more meticulous structure is needed to design.

Summary of the invention

It is an object of the invention to propose a kind of evaporator for central air-conditioner.

To achieve this purpose, the present invention adopts the following technical scheme:

Evaporator for central air-conditioner, including shell, copper pipe, drive end bearing bracket, rear end cap and spoiler；The shell is cylindrical shell, It is provided with water inlet, water outlet, gas vent and drainage hole；The water inlet by flanged joint in water inlet pipe, the water outlet by Flanged joint is welded with casing in outlet pipe, the gas vent, which installs exhaust valve again；The drainage hole is welded with set Pipe, the casing install exhaust valve again；The copper pipe is entered in the shell by the lower half of the drive end bearing bracket, in the shell The rear end for extending to the shell is turned back again to the upper half of the drive end bearing bracket；The inner wall and outside wall surface of the copper pipe are band Threaded surface；For the excircle of the drive end bearing bracket by being bolted in the shell, the drive end bearing bracket is provided with medium inlet And media outlet, the medium inlet are located at lower half, the media outlet is located at the upper half；The medium inlet and medium go out Mouth is welded with casing, which is provided with sinking step, the sinking step welding medium tube channel；The medium goes out The top of mouth is provided with venting plug；The rear end cap is welded in the rear end of the shell, and the rear end cap is by cylindrical shell and portion Bulb separation face is welded, and the cylindrical shell is connect with the rear end of the shell；The spoiler is the discount vibram outlet more than semicircle, arrangement Mode is that part is arranged along the interior of shell proportional spacing, and the discount vibram outlet of adjacent spoiler is located at horizontal left and right two Side makes the runner in the shell form the channel of left and right snake-like swing.

Shell of the present invention occupies all spaces of entire evaporator, thus preset on the shell water and medium into Water outlet can save big quantity space, optimize the design of host；Inlet and outlet are easy for installation using flanged joint, hold Maintenance easy to maintain；The frequency of use of gas vent and drainage hole is not high, and failure rate is very low, lets out so can be reduced using welding method Dew.

Detailed description of the invention

Fig. 1 is the positive structure schematic of one embodiment of the present of invention；

Fig. 2 is the overlooking structure diagram of one embodiment of the present of invention；

Fig. 3 is the left side structure schematic diagram of one embodiment of the present of invention.

Appended drawing reference:

Shell 1, copper pipe 2, drive end bearing bracket 3, rear end cap 4, spoiler 5, water inlet 11, water outlet 12, gas vent 13, drainage hole 14, Noseplate 15, rear bottom plate 16, medium inlet 31, media outlet 32, venting plug 321, fixed link 51.

Specific embodiment

To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.

Evaporator for central air-conditioner, including shell 1, copper pipe 2, drive end bearing bracket 3, rear end cap 4 and spoiler 5；The shell 1 is circle Column shell is provided with water inlet 11, water outlet 12, gas vent 13 and drainage hole 14；The water inlet 11 by flanged joint in Water inlet pipe, the water outlet 12 is by flanged joint in outlet pipe, and the gas vent 13 is welded with casing, which installs exhaust again Valve；The drainage hole 14 is welded with casing, which installs exhaust valve again；Shell 1 occupies all spaces of entire evaporator, Therefore water and the intake-outlet of medium are preset on shell 1 can save big quantity space, optimize the design of host；Water inlet Mouth 11 and water outlet 12 are easy for installation using flanged joint, are easy Maintenance and Repair；The frequency of use of gas vent and drainage hole 14 is not Height, failure rate is very low, so can reduce leakage using welding method.The copper pipe 2 is entered by the lower half of the drive end bearing bracket 3 In the shell 1, turned back again in the rear end for extending to the shell 1 in the shell 1 to the upper half of the drive end bearing bracket 3；Institute The inner wall and outside wall surface for stating copper pipe 2 are screwed surface；The inside and outside wall surface of copper pipe 2 is all that thread surface can enhance Heat exchange area reduces energy consumption to improve heat exchange efficiency；The excircle of the drive end bearing bracket 3 by being bolted in the shell 1, The drive end bearing bracket 3 is provided with medium inlet 31 and media outlet 32, and the medium inlet 31 is located at lower half, the media outlet 32 are located at the upper half；The medium inlet 31 and media outlet 32 are welded with casing, which is provided with sinking step, The sinking step welding medium tube channel；The top of the media outlet 32 is provided with venting plug 321；Using casing and sinking The welding manner of step can be conducive to the connection of the pipeline of medium system, and medium is high-pressure fluid, close when also ensuring operation Feng Xing, it is ensured that will not reveal.

The rear end cap 4 is welded in the rear end of the shell 1, and the rear end cap 4 is welded by cylindrical shell and spherical calotte It forms, the cylindrical shell is connect with the rear end of the shell 1；

Welding back shroud 4 reduces manufacturing cost, while also ensuring the airtightness of container；

The spoiler 5 is the discount vibram outlet more than semicircle, and arrangement is that part is arranged along the 1 inside proportional spacing of shell Column, the discount vibram outlet of adjacent spoiler 5 are located at left and right sides of level, and forming the runner in the shell 1, left and right is snakelike to shake The channel of pendulum.

The heat exchanger channels of snakelike arrangement can enhance flow-disturbing and increase heat exchange distance and area, improve heat exchange efficiency； Spoiler 5 is simple and reliable for structure, is easily installed and repairs, and nor affects on use compared with less breakage and skew even if having；

Flange is bolted the water inlet 11 and water inlet pipe using 8.

The thickness of copper pipe is not less than 0.6mm；The screw thread of the copper pipe of every 1cm is no less than 22 circles.

The depth of sinking step is not less than 12mm.

Solder thickness is not less than 5mm.

Spoiler 5 with a thickness of 5mm.

The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within Within protection scope of the present invention.

Claims (6)

1. evaporator for central air-conditioner, including shell, copper pipe, drive end bearing bracket, rear end cap and spoiler, it is characterised in that: the shell For cylindrical shell, it is provided with water inlet, water outlet, gas vent and drainage hole；The water inlet by flanged joint in water inlet pipe, The water outlet is by flanged joint in outlet pipe, and the gas vent is welded with casing, which installs exhaust valve again；The draining Hole is welded with casing, which installs exhaust valve again；The copper pipe is entered in the shell by the lower half of the drive end bearing bracket, in The rear end that the shell is extended in the shell is turned back again to the upper half of the drive end bearing bracket；The inner wall of the copper pipe and outer Wall surface is screwed surface；The excircle of the drive end bearing bracket is by being bolted in the shell, the drive end bearing bracket setting There are medium inlet and media outlet, the medium inlet is located at lower half, and the media outlet is located at the upper half；The medium enters Mouth and media outlet are welded with casing, which is provided with sinking step, the sinking step welding medium tube channel； Venting plug is provided at the top of the media outlet；The rear end cap is welded in the rear end of the shell, and the rear end cap is by justifying Column shell and spherical calotte are welded, and the cylindrical shell is connect with the rear end of the shell；The spoiler is more than semicircle Discount vibram outlet, arrangement is that part is arranged along the interior of shell proportional spacing, and the discount vibram outlet of adjacent spoiler distinguishes position At left and right sides of level, the runner in the shell is made to form the channel of left and right snake-like swing.

2. evaporator for central air-conditioner as described in claim 1, it is characterised in that: flange is bolted the water inlet using 8 Mouth and water inlet pipe.

3. evaporator for central air-conditioner as described in claim 1, it is characterised in that: the thickness of copper pipe is not less than 0.6mm；Every 1cm The screw thread of copper pipe be no less than 22 circles.

4. evaporator for central air-conditioner as described in claim 1, it is characterised in that: the depth of sinking step is not less than 12mm.

5. evaporator for central air-conditioner as described in claim 1, it is characterised in that: solder thickness is not less than 5mm.

6. evaporator for central air-conditioner as described in claim 1, it is characterised in that: spoiler with a thickness of 5mm.